155285453 has 2 divisors, whose sum is σ = 155285454. Its totient is φ = 155285452.

The previous prime is 155285441. The next prime is 155285467. The reversal of 155285453 is 354582551.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 143472484 + 11812969 = 11978^2 + 3437^2 .

It is a cyclic number.

It is not a de Polignac number, because 155285453 - 2¹⁶ = 155219917 is a prime.

It is a super-2 number, since 2×155285453² = 48227143826830418, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (155285953) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77642726 + 77642727.

It is an arithmetic number, because the mean of its divisors is an integer number (77642727).

Almost surely, 2^155285453 is an apocalyptic number.

It is an amenable number.

155285453 is a deficient number, since it is larger than the sum of its proper divisors (1).

155285453 is an equidigital number, since it uses as much as digits as its factorization.

155285453 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 120000, while the sum is 38.

The square root of 155285453 is about 12461.3583930485. The cubic root of 155285453 is about 537.4980889061.

The spelling of 155285453 in words is "one hundred fifty-five million, two hundred eighty-five thousand, four hundred fifty-three".