155622473 has 2 divisors, whose sum is σ = 155622474. Its totient is φ = 155622472.

The previous prime is 155622451. The next prime is 155622487. The reversal of 155622473 is 374226551.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 147573904 + 8048569 = 12148^2 + 2837^2 .

It is a cyclic number.

It is not a de Polignac number, because 155622473 - 2¹⁰ = 155621449 is a prime.

It is not a weakly prime, because it can be changed into another prime (155622413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77811236 + 77811237.

It is an arithmetic number, because the mean of its divisors is an integer number (77811237).

Almost surely, 2^155622473 is an apocalyptic number.

It is an amenable number.

155622473 is a deficient number, since it is larger than the sum of its proper divisors (1).

155622473 is an equidigital number, since it uses as much as digits as its factorization.

155622473 is an evil number, because the sum of its binary digits is even.

The product of its digits is 50400, while the sum is 35.

The square root of 155622473 is about 12474.8736666950. The cubic root of 155622473 is about 537.8866565632.

The spelling of 155622473 in words is "one hundred fifty-five million, six hundred twenty-two thousand, four hundred seventy-three".