155313404 has 6 divisors (see below), whose sum is σ = 271798464. Its totient is φ = 77656700.

The previous prime is 155313401. The next prime is 155313439. The reversal of 155313404 is 404313551.

155313404 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×155313404³ (a number of 26 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155313401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19414172 + ... + 19414179.

It is an arithmetic number, because the mean of its divisors is an integer number (45299744).

Almost surely, 2^155313404 is an apocalyptic number.

It is an amenable number.

155313404 is a deficient number, since it is larger than the sum of its proper divisors (116485060).

155313404 is a wasteful number, since it uses less digits than its factorization.

155313404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38828355 (or 38828353 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 155313404 is about 12462.4798495324. The cubic root of 155313404 is about 537.5303364165.

Adding to 155313404 its reverse (404313551), we get a palindrome (559626955).

The spelling of 155313404 in words is "one hundred fifty-five million, three hundred thirteen thousand, four hundred four".