155439602 has 16 divisors (see below), whose sum is σ = 247149792. Its totient is φ = 73066560.

The previous prime is 155439593. The next prime is 155439607. The reversal of 155439602 is 206934551.

155439602 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×155439602² = 48322939739836808, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (155439607) 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, 37577 + ... + 41507.

It is an arithmetic number, because the mean of its divisors is an integer number (15446862).

Almost surely, 2^155439602 is an apocalyptic number.

155439602 is a deficient number, since it is larger than the sum of its proper divisors (91710190).

155439602 is a wasteful number, since it uses less digits than its factorization.

155439602 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5113.

The product of its (nonzero) digits is 32400, while the sum is 35.

The square root of 155439602 is about 12467.5419389710. The cubic root of 155439602 is about 537.6758848947.

The spelling of 155439602 in words is "one hundred fifty-five million, four hundred thirty-nine thousand, six hundred two".