155376434 has 4 divisors (see below), whose sum is σ = 233064654. Its totient is φ = 77688216.

The previous prime is 155376409. The next prime is 155376437. The reversal of 155376434 is 434673551.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 434673551 = 13 ⋅33436427.

It can be written as a sum of positive squares in only one way, i.e., 121771225 + 33605209 = 11035^2 + 5797^2 .

It is not an unprimeable number, because it can be changed into a prime (155376437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38844107 + ... + 38844110.

Almost surely, 2^155376434 is an apocalyptic number.

155376434 is a deficient number, since it is larger than the sum of its proper divisors (77688220).

155376434 is an equidigital number, since it uses as much as digits as its factorization.

155376434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77688219.

The product of its digits is 151200, while the sum is 38.

The square root of 155376434 is about 12465.0083834709. The cubic root of 155376434 is about 537.6030409268.

The spelling of 155376434 in words is "one hundred fifty-five million, three hundred seventy-six thousand, four hundred thirty-four".