153994131 has 12 divisors (see below), whose sum is σ = 232107408. Its totient is φ = 98199024.

The previous prime is 153994129. The next prime is 153994151. The reversal of 153994131 is 131499351.

153994131 is a `hidden beast` number, since 1 + 539 + 94 + 1 + 31 = 666.

153994131 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 153994131 - 2¹ = 153994129 is a prime.

It is a super-2 number, since 2×153994131² = 47428384764890322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (153994151) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 371760 + ... + 372173.

It is an arithmetic number, because the mean of its divisors is an integer number (19342284).

Almost surely, 2^153994131 is an apocalyptic number.

153994131 is a deficient number, since it is larger than the sum of its proper divisors (78113277).

153994131 is a wasteful number, since it uses less digits than its factorization.

153994131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 743962 (or 743959 counting only the distinct ones).

The product of its digits is 14580, while the sum is 36.

The square root of 153994131 is about 12409.4371749890. The cubic root of 153994131 is about 536.0040318160.

The spelling of 153994131 in words is "one hundred fifty-three million, nine hundred ninety-four thousand, one hundred thirty-one".