155676497 has 12 divisors (see below), whose sum is σ = 165997356. Its totient is φ = 145966080.

The previous prime is 155676461. The next prime is 155676527. The reversal of 155676497 is 794676551.

It can be written as a sum of positive squares in 6 ways, for example, as 698896 + 154977601 = 836^2 + 12449^2 .

It is not a de Polignac number, because 155676497 - 2¹² = 155672401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (155676407) 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, 89597 + ... + 91317.

It is an arithmetic number, because the mean of its divisors is an integer number (13833113).

Almost surely, 2^155676497 is an apocalyptic number.

155676497 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

155676497 is a deficient number, since it is larger than the sum of its proper divisors (10320859).

155676497 is a wasteful number, since it uses less digits than its factorization.

155676497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2068 (or 2051 counting only the distinct ones).

The product of its digits is 1587600, while the sum is 50.

The square root of 155676497 is about 12477.0387913158. The cubic root of 155676497 is about 537.9488914197.

The spelling of 155676497 in words is "one hundred fifty-five million, six hundred seventy-six thousand, four hundred ninety-seven".