151550493 has 4 divisors (see below), whose sum is σ = 202067328. Its totient is φ = 101033660.

The previous prime is 151550489. The next prime is 151550543. The reversal of 151550493 is 394055151.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 151550493 - 2² = 151550489 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (151550293) 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, 25258413 + ... + 25258418.

It is an arithmetic number, because the mean of its divisors is an integer number (50516832).

Almost surely, 2^151550493 is an apocalyptic number.

It is an amenable number.

151550493 is a deficient number, since it is larger than the sum of its proper divisors (50516835).

151550493 is an equidigital number, since it uses as much as digits as its factorization.

151550493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50516834.

The product of its (nonzero) digits is 13500, while the sum is 33.

The square root of 151550493 is about 12310.5845921305. The cubic root of 151550493 is about 533.1537290635.

The spelling of 151550493 in words is "one hundred fifty-one million, five hundred fifty thousand, four hundred ninety-three".