151261403 has 2 divisors, whose sum is σ = 151261404. Its totient is φ = 151261402.

The previous prime is 151261391. The next prime is 151261421. The reversal of 151261403 is 304162151.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 151261403 - 2¹⁰ = 151260379 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (151266403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 75630701 + 75630702.

It is an arithmetic number, because the mean of its divisors is an integer number (75630702).

Almost surely, 2^151261403 is an apocalyptic number.

151261403 is a deficient number, since it is larger than the sum of its proper divisors (1).

151261403 is an equidigital number, since it uses as much as digits as its factorization.

151261403 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 151261403 is about 12298.8374653867. The cubic root of 151261403 is about 532.8145076472.

The spelling of 151261403 in words is "one hundred fifty-one million, two hundred sixty-one thousand, four hundred three".