151640417 has 2 divisors, whose sum is σ = 151640418. Its totient is φ = 151640416.

The previous prime is 151640399. The next prime is 151640453. The reversal of 151640417 is 714046151.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 138274081 + 13366336 = 11759^2 + 3656^2 .

It is a cyclic number.

It is not a de Polignac number, because 151640417 - 2⁶ = 151640353 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 151640417.

It is not a weakly prime, because it can be changed into another prime (151640117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 75820208 + 75820209.

It is an arithmetic number, because the mean of its divisors is an integer number (75820209).

Almost surely, 2^151640417 is an apocalyptic number.

It is an amenable number.

151640417 is a deficient number, since it is larger than the sum of its proper divisors (1).

151640417 is an equidigital number, since it uses as much as digits as its factorization.

151640417 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3360, while the sum is 29.

The square root of 151640417 is about 12314.2363547237. The cubic root of 151640417 is about 533.2591589119.

Adding to 151640417 its reverse (714046151), we get a palindrome (865686568).

The spelling of 151640417 in words is "one hundred fifty-one million, six hundred forty thousand, four hundred seventeen".