155971453 has 8 divisors (see below), whose sum is σ = 170444736. Its totient is φ = 141547200.

The previous prime is 155971423. The next prime is 155971463. The reversal of 155971453 is 354179551.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 155971453 - 2¹³ = 155963261 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155971423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5433 + ... + 18478.

It is an arithmetic number, because the mean of its divisors is an integer number (21305592).

Almost surely, 2^155971453 is an apocalyptic number.

It is an amenable number.

155971453 is a deficient number, since it is larger than the sum of its proper divisors (14473283).

155971453 is a wasteful number, since it uses less digits than its factorization.

155971453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24515.

The product of its digits is 94500, while the sum is 40.

The square root of 155971453 is about 12488.8531499093. The cubic root of 155971453 is about 538.2884227589.

The spelling of 155971453 in words is "one hundred fifty-five million, nine hundred seventy-one thousand, four hundred fifty-three".