155426251 has 8 divisors (see below), whose sum is σ = 163777680. Its totient is φ = 147091968.

The previous prime is 155426207. The next prime is 155426267. The reversal of 155426251 is 152624551.

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

It is a cyclic number.

It is not a de Polignac number, because 155426251 - 2¹³ = 155418059 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (155426351) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17115 + ... + 24571.

It is an arithmetic number, because the mean of its divisors is an integer number (20472210).

Almost surely, 2^155426251 is an apocalyptic number.

155426251 is a deficient number, since it is larger than the sum of its proper divisors (8351429).

155426251 is a wasteful number, since it uses less digits than its factorization.

155426251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8573.

The product of its digits is 12000, while the sum is 31.

The square root of 155426251 is about 12467.0064971508. The cubic root of 155426251 is about 537.6604904560.

The spelling of 155426251 in words is "one hundred fifty-five million, four hundred twenty-six thousand, two hundred fifty-one".