155125454 has 8 divisors (see below), whose sum is σ = 253841688. Its totient is φ = 70511560.

The previous prime is 155125441. The next prime is 155125559. The reversal of 155125454 is 454521551.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×155125454² = 48127812957412232, which contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 155125454.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3525557 + ... + 3525600.

It is an arithmetic number, because the mean of its divisors is an integer number (31730211).

Almost surely, 2^155125454 is an apocalyptic number.

155125454 is a deficient number, since it is larger than the sum of its proper divisors (98716234).

155125454 is a wasteful number, since it uses less digits than its factorization.

155125454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7051170.

The product of its digits is 20000, while the sum is 32.

The square root of 155125454 is about 12454.9369327990. The cubic root of 155125454 is about 537.3134210176.

The spelling of 155125454 in words is "one hundred fifty-five million, one hundred twenty-five thousand, four hundred fifty-four".