155465243 has 4 divisors (see below), whose sum is σ = 155574720. Its totient is φ = 155355768.

The previous prime is 155465207. The next prime is 155465269. The reversal of 155465243 is 342564551.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 155465243 - 2¹⁴ = 155448859 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (155467243) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52580 + ... + 55457.

It is an arithmetic number, because the mean of its divisors is an integer number (38893680).

Almost surely, 2^155465243 is an apocalyptic number.

155465243 is a deficient number, since it is larger than the sum of its proper divisors (109477).

155465243 is a wasteful number, since it uses less digits than its factorization.

155465243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109476.

The product of its digits is 72000, while the sum is 35.

The square root of 155465243 is about 12468.5702067238. The cubic root of 155465243 is about 537.7054479086.

The spelling of 155465243 in words is "one hundred fifty-five million, four hundred sixty-five thousand, two hundred forty-three".