31400146554 has 16 divisors (see below), whose sum is σ = 71771763648. Its totient is φ = 8971470432.

The previous prime is 31400146513. The next prime is 31400146601. The reversal of 31400146554 is 45564100413.

It is a super-2 number, since 2×31400146554² (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 373811227 + ... + 373811310.

It is an arithmetic number, because the mean of its divisors is an integer number (4485735228).

Almost surely, 2^31400146554 is an apocalyptic number.

31400146554 is an abundant number, since it is smaller than the sum of its proper divisors (40371617094).

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

31400146554 is a wasteful number, since it uses less digits than its factorization.

31400146554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 747622549.

The product of its (nonzero) digits is 28800, while the sum is 33.

Adding to 31400146554 its reverse (45564100413), we get a palindrome (76964246967).

The spelling of 31400146554 in words is "thirty-one billion, four hundred million, one hundred forty-six thousand, five hundred fifty-four".