151438643 has 2 divisors, whose sum is σ = 151438644. Its totient is φ = 151438642.

The previous prime is 151438633. The next prime is 151438681. The reversal of 151438643 is 346834151.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 151438643 - 2⁶ = 151438579 is a prime.

It is not a weakly prime, because it can be changed into another prime (151438603) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 75719321 + 75719322.

It is an arithmetic number, because the mean of its divisors is an integer number (75719322).

Almost surely, 2^151438643 is an apocalyptic number.

151438643 is a deficient number, since it is larger than the sum of its proper divisors (1).

151438643 is an equidigital number, since it uses as much as digits as its factorization.

151438643 is an evil number, because the sum of its binary digits is even.

The product of its digits is 34560, while the sum is 35.

The square root of 151438643 is about 12306.0409149328. The cubic root of 151438643 is about 533.0225342387.

The spelling of 151438643 in words is "one hundred fifty-one million, four hundred thirty-eight thousand, six hundred forty-three".