151014821 has 2 divisors, whose sum is σ = 151014822. Its totient is φ = 151014820.

The previous prime is 151014769. The next prime is 151014823. The reversal of 151014821 is 128410151.

151014821 = 8689² + 8690².

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 75516100 + 75498721 = 8690^2 + 8689^2 .

It is a cyclic number.

It is not a de Polignac number, because 151014821 - 2¹⁸ = 150752677 is a prime.

Together with 151014823, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (151014823) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 75507410 + 75507411.

It is an arithmetic number, because the mean of its divisors is an integer number (75507411).

Almost surely, 2^151014821 is an apocalyptic number.

151014821 is the 8690-th centered square number.

It is an amenable number.

151014821 is a deficient number, since it is larger than the sum of its proper divisors (1).

151014821 is an equidigital number, since it uses as much as digits as its factorization.

151014821 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 320, while the sum is 23.

The square root of 151014821 is about 12288.8087705847. The cubic root of 151014821 is about 532.5248238701.

Adding to 151014821 its reverse (128410151), we get a palindrome (279424972).

The spelling of 151014821 in words is "one hundred fifty-one million, fourteen thousand, eight hundred twenty-one".