151611401 has 2 divisors, whose sum is σ = 151611402. Its totient is φ = 151611400.

The previous prime is 151611371. The next prime is 151611433. The reversal of 151611401 is 104116151.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 106399225 + 45212176 = 10315^2 + 6724^2 .

It is an emirp because it is prime and its reverse (104116151) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 151611401 - 2⁶ = 151611337 is a prime.

It is not a weakly prime, because it can be changed into another prime (151619401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 75805700 + 75805701.

It is an arithmetic number, because the mean of its divisors is an integer number (75805701).

Almost surely, 2^151611401 is an apocalyptic number.

It is an amenable number.

151611401 is a deficient number, since it is larger than the sum of its proper divisors (1).

151611401 is an equidigital number, since it uses as much as digits as its factorization.

151611401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 120, while the sum is 20.

The square root of 151611401 is about 12313.0581497855. The cubic root of 151611401 is about 533.2251441572.

Adding to 151611401 its reverse (104116151), we get a palindrome (255727552).

The spelling of 151611401 in words is "one hundred fifty-one million, six hundred eleven thousand, four hundred one".