152997994 has 32 divisors (see below), whose sum is σ = 257532480. Its totient is φ = 67744512.

The previous prime is 152997991. The next prime is 152998009. The reversal of 152997994 is 499799251.

152997994 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (152997991) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 104572 + ... + 106024.

It is an arithmetic number, because the mean of its divisors is an integer number (8047890).

Almost surely, 2^152997994 is an apocalyptic number.

152997994 is a deficient number, since it is larger than the sum of its proper divisors (104534486).

152997994 is a wasteful number, since it uses less digits than its factorization.

152997994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1654.

The product of its digits is 1837080, while the sum is 55.

The square root of 152997994 is about 12369.2357888432. The cubic root of 152997994 is about 534.8457866293.

The spelling of 152997994 in words is "one hundred fifty-two million, nine hundred ninety-seven thousand, nine hundred ninety-four".