155271463 has 2 divisors, whose sum is σ = 155271464. Its totient is φ = 155271462.

The previous prime is 155271443. The next prime is 155271491. The reversal of 155271463 is 364172551.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 155271463 - 2²¹ = 153174311 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (155271443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77635731 + 77635732.

It is an arithmetic number, because the mean of its divisors is an integer number (77635732).

Almost surely, 2^155271463 is an apocalyptic number.

155271463 is a deficient number, since it is larger than the sum of its proper divisors (1).

155271463 is an equidigital number, since it uses as much as digits as its factorization.

155271463 is an evil number, because the sum of its binary digits is even.

The product of its digits is 25200, while the sum is 34.

The square root of 155271463 is about 12460.7970451332. The cubic root of 155271463 is about 537.4819469689.

The spelling of 155271463 in words is "one hundred fifty-five million, two hundred seventy-one thousand, four hundred sixty-three".