155146497 has 16 divisors (see below), whose sum is σ = 227059968. Its totient is φ = 93448080.

The previous prime is 155146493. The next prime is 155146547. The reversal of 155146497 is 794641551.

It is not a de Polignac number, because 155146497 - 2² = 155146493 is a prime.

It is a super-3 number, since 3×155146497³ (a number of 26 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (155146493) 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 in 15 ways as a sum of consecutive naturals, for example, 9043 + ... + 19800.

It is an arithmetic number, because the mean of its divisors is an integer number (14191248).

Almost surely, 2^155146497 is an apocalyptic number.

It is an amenable number.

155146497 is a deficient number, since it is larger than the sum of its proper divisors (71913471).

155146497 is a wasteful number, since it uses less digits than its factorization.

155146497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29020.

The product of its digits is 151200, while the sum is 42.

The square root of 155146497 is about 12455.7816695702. The cubic root of 155146497 is about 537.3377157090.

The spelling of 155146497 in words is "one hundred fifty-five million, one hundred forty-six thousand, four hundred ninety-seven".