31445000054149 has 8 divisors (see below), whose sum is σ = 34308388363680. Its totient is φ = 28582403734800.

The previous prime is 31445000054147. The next prime is 31445000054263. The reversal of 31445000054149 is 94145000054413.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 31445000054149 - 2¹ = 31445000054147 is a prime.

It is a super-2 number, since 2×31445000054149² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31445000054141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 197914522 + ... + 198073339.

It is an arithmetic number, because the mean of its divisors is an integer number (4288548545460).

Almost surely, 2^{31445000054149} is an apocalyptic number.

It is an amenable number.

31445000054149 is a deficient number, since it is larger than the sum of its proper divisors (2863388309531).

31445000054149 is a wasteful number, since it uses less digits than its factorization.

31445000054149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 395995091.

The product of its (nonzero) digits is 172800, while the sum is 40.

The spelling of 31445000054149 in words is "thirty-one trillion, four hundred forty-five billion, fifty-four thousand, one hundred forty-nine".