151989442 has 8 divisors (see below), whose sum is σ = 248710032. Its totient is φ = 69086100.

The previous prime is 151989389. The next prime is 151989449. The reversal of 151989442 is 244989151.

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

It is not an unprimeable number, because it can be changed into a prime (151989449) 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, 3454284 + ... + 3454327.

It is an arithmetic number, because the mean of its divisors is an integer number (31088754).

Almost surely, 2^151989442 is an apocalyptic number.

151989442 is a deficient number, since it is larger than the sum of its proper divisors (96720590).

151989442 is a wasteful number, since it uses less digits than its factorization.

151989442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6908624.

The product of its digits is 103680, while the sum is 43.

The square root of 151989442 is about 12328.3998150612. The cubic root of 151989442 is about 533.6679728861.

The spelling of 151989442 in words is "one hundred fifty-one million, nine hundred eighty-nine thousand, four hundred forty-two".