152621347 has 2 divisors, whose sum is σ = 152621348. Its totient is φ = 152621346.

The previous prime is 152621333. The next prime is 152621351. The reversal of 152621347 is 743126251.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 152621347 - 2¹⁹ = 152097059 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (152621317) 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 as a sum of consecutive naturals, namely, 76310673 + 76310674.

It is an arithmetic number, because the mean of its divisors is an integer number (76310674).

Almost surely, 2^152621347 is an apocalyptic number.

152621347 is a deficient number, since it is larger than the sum of its proper divisors (1).

152621347 is an equidigital number, since it uses as much as digits as its factorization.

152621347 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10080, while the sum is 31.

The square root of 152621347 is about 12354.0012546543. The cubic root of 152621347 is about 534.4065355670.

Subtracting from 152621347 its sum of digits (31), we obtain a square (152621316 = 12354²).

Adding to 152621347 its reverse (743126251), we get a palindrome (895747598).

The spelling of 152621347 in words is "one hundred fifty-two million, six hundred twenty-one thousand, three hundred forty-seven".