151121004 has 24 divisors (see below), whose sum is σ = 354135600. Its totient is φ = 50156544.

The previous prime is 151120997. The next prime is 151121011. The reversal of 151121004 is 400121151.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (151120997) and next prime (151121011).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24229 + ... + 29820.

It is an arithmetic number, because the mean of its divisors is an integer number (14755650).

Almost surely, 2^151121004 is an apocalyptic number.

It is an amenable number.

151121004 is an abundant number, since it is smaller than the sum of its proper divisors (203014596).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

151121004 is a wasteful number, since it uses less digits than its factorization.

151121004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54289 (or 54287 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 15.

The square root of 151121004 is about 12293.1283243933. The cubic root of 151121004 is about 532.6496059618.

Adding to 151121004 its reverse (400121151), we get a palindrome (551242155).

The spelling of 151121004 in words is "one hundred fifty-one million, one hundred twenty-one thousand, four".