155250451 has 2 divisors, whose sum is σ = 155250452. Its totient is φ = 155250450.

The previous prime is 155250419. The next prime is 155250461. The reversal of 155250451 is 154052551.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 155250451 - 2⁵ = 155250419 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (155250461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77625225 + 77625226.

It is an arithmetic number, because the mean of its divisors is an integer number (77625226).

Almost surely, 2^155250451 is an apocalyptic number.

155250451 is a deficient number, since it is larger than the sum of its proper divisors (1).

155250451 is an equidigital number, since it uses as much as digits as its factorization.

155250451 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 155250451 is about 12459.9538923705. The cubic root of 155250451 is about 537.4577010881.

It can be divided in two parts, 1552 and 50451, that added together give a triangular number (52003 = T₃₂₂).

The spelling of 155250451 in words is "one hundred fifty-five million, two hundred fifty thousand, four hundred fifty-one".