151331642 has 32 divisors (see below), whose sum is σ = 288365184. Its totient is φ = 57844800.

The previous prime is 151331611. The next prime is 151331647. The reversal of 151331642 is 246133151.

It is not an unprimeable number, because it can be changed into a prime (151331647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1109 + ... + 17432.

It is an arithmetic number, because the mean of its divisors is an integer number (9011412).

Almost surely, 2^151331642 is an apocalyptic number.

151331642 is a deficient number, since it is larger than the sum of its proper divisors (137033542).

151331642 is a wasteful number, since it uses less digits than its factorization.

151331642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18614.

The product of its digits is 2160, while the sum is 26.

The square root of 151331642 is about 12301.6926477619. The cubic root of 151331642 is about 532.8969665918.

Adding to 151331642 its reverse (246133151), we get a palindrome (397464793).

The spelling of 151331642 in words is "one hundred fifty-one million, three hundred thirty-one thousand, six hundred forty-two".