155329479 has 12 divisors (see below), whose sum is σ = 224742336. Its totient is φ = 103378752.

The previous prime is 155329463. The next prime is 155329487. The reversal of 155329479 is 974923551.

It is a happy number.

155329479 is a `hidden beast` number, since 1 + 553 + 2 + 94 + 7 + 9 = 666.

It is not a de Polignac number, because 155329479 - 2⁴ = 155329463 is a prime.

It is a super-2 number, since 2×155329479² = 48254494092822882, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155329409) 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, 8754 + ... + 19679.

It is an arithmetic number, because the mean of its divisors is an integer number (18728528).

Almost surely, 2^155329479 is an apocalyptic number.

155329479 is a deficient number, since it is larger than the sum of its proper divisors (69412857).

155329479 is a wasteful number, since it uses less digits than its factorization.

155329479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29046 (or 29043 counting only the distinct ones).

The product of its digits is 340200, while the sum is 45.

The square root of 155329479 is about 12463.1247686926. The cubic root of 155329479 is about 537.5488806457.

The spelling of 155329479 in words is "one hundred fifty-five million, three hundred twenty-nine thousand, four hundred seventy-nine".