155154451 has 2 divisors, whose sum is σ = 155154452. Its totient is φ = 155154450.

The previous prime is 155154409. The next prime is 155154469. The reversal of 155154451 is 154451551.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 155154451 - 2⁹ = 155153939 is a prime.

It is a super-2 number, since 2×155154451² = 48145807330222802, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (155154401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77577225 + 77577226.

It is an arithmetic number, because the mean of its divisors is an integer number (77577226).

Almost surely, 2^155154451 is an apocalyptic number.

155154451 is a deficient number, since it is larger than the sum of its proper divisors (1).

155154451 is an equidigital number, since it uses as much as digits as its factorization.

155154451 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10000, while the sum is 31.

The square root of 155154451 is about 12456.1009549538. The cubic root of 155154451 is about 537.3468982370.

The spelling of 155154451 in words is "one hundred fifty-five million, one hundred fifty-four thousand, four hundred fifty-one".