155434612 has 6 divisors (see below), whose sum is σ = 272010578. Its totient is φ = 77717304.

The previous prime is 155434603. The next prime is 155434661. The reversal of 155434612 is 216434551.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 106378596 + 49056016 = 10314^2 + 7004^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19429323 + ... + 19429330.

Almost surely, 2^155434612 is an apocalyptic number.

It is an amenable number.

155434612 is a deficient number, since it is larger than the sum of its proper divisors (116575966).

155434612 is a wasteful number, since it uses less digits than its factorization.

155434612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38858657 (or 38858655 counting only the distinct ones).

The product of its digits is 14400, while the sum is 31.

The square root of 155434612 is about 12467.3418177252. The cubic root of 155434612 is about 537.6701312529.

The spelling of 155434612 in words is "one hundred fifty-five million, four hundred thirty-four thousand, six hundred twelve".