155452051 has 2 divisors, whose sum is σ = 155452052. Its totient is φ = 155452050.

The previous prime is 155452049. The next prime is 155452139. The reversal of 155452051 is 150254551.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 155452051 - 2¹ = 155452049 is a prime.

Together with 155452049, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (155452001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77726025 + 77726026.

It is an arithmetic number, because the mean of its divisors is an integer number (77726026).

Almost surely, 2^155452051 is an apocalyptic number.

155452051 is a deficient number, since it is larger than the sum of its proper divisors (1).

155452051 is an equidigital number, since it uses as much as digits as its factorization.

155452051 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5000, while the sum is 28.

The square root of 155452051 is about 12468.0411853667. The cubic root of 155452051 is about 537.6902384835.

The spelling of 155452051 in words is "one hundred fifty-five million, four hundred fifty-two thousand, fifty-one".