31415454022140 has 72 divisors (see below), whose sum is σ = 95298551580960. Its totient is φ = 8377014167424.

The previous prime is 31415454022123. The next prime is 31415454022171. The reversal of 31415454022140 is 4122045451413.

31415454022140 is a `hidden beast` number, since 3 + 1 + 4 + 1 + 54 + 540 + 2 + 21 + 40 = 666.

It is a super-2 number, since 2×31415454022140² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 31415454022095 and 31415454022104.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1143864 + ... + 8008703.

It is an arithmetic number, because the mean of its divisors is an integer number (1323590994180).

Almost surely, 2^{31415454022140} is an apocalyptic number.

31415454022140 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

31415454022140 is an abundant number, since it is smaller than the sum of its proper divisors (63883097558820).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31415454022140 is a wasteful number, since it uses less digits than its factorization.

31415454022140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9171651 (or 9171646 counting only the distinct ones).

The product of its (nonzero) digits is 76800, while the sum is 36.

Adding to 31415454022140 its reverse (4122045451413), we get a palindrome (35537499473553).

The spelling of 31415454022140 in words is "thirty-one trillion, four hundred fifteen billion, four hundred fifty-four million, twenty-two thousand, one hundred forty".