151541391 has 4 divisors (see below), whose sum is σ = 202055192. Its totient is φ = 101027592.

The previous prime is 151541339. The next prime is 151541393. The reversal of 151541391 is 193145151.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 193145151 = 3 ⋅64381717.

It is not a de Polignac number, because 151541391 - 2¹⁴ = 151525007 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (151541393) 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, 25256896 + ... + 25256901.

It is an arithmetic number, because the mean of its divisors is an integer number (50513798).

Almost surely, 2^151541391 is an apocalyptic number.

151541391 is a deficient number, since it is larger than the sum of its proper divisors (50513801).

151541391 is an equidigital number, since it uses as much as digits as its factorization.

151541391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50513800.

The product of its digits is 2700, while the sum is 30.

The square root of 151541391 is about 12310.2149047041. The cubic root of 151541391 is about 533.1430552560.

The spelling of 151541391 in words is "one hundred fifty-one million, five hundred forty-one thousand, three hundred ninety-one".