1351662402157 has 4 divisors (see below), whose sum is σ = 1352570168860. Its totient is φ = 1350754635456.

The previous prime is 1351662402131. The next prime is 1351662402169. The reversal of 1351662402157 is 7512042661531.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 90845576836 + 1260816825321 = 301406^2 + 1122861^2 .

It is a cyclic number.

It is not a de Polignac number, because 1351662402157 - 2¹⁹ = 1351661877869 is a prime.

It is a super-3 number, since 3×1351662402157³ (a number of 37 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1351662402557) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 453881118 + ... + 453884095.

It is an arithmetic number, because the mean of its divisors is an integer number (338142542215).

Almost surely, 2^{1351662402157} is an apocalyptic number.

It is an amenable number.

1351662402157 is a deficient number, since it is larger than the sum of its proper divisors (907766703).

1351662402157 is an equidigital number, since it uses as much as digits as its factorization.

1351662402157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 907766702.

The product of its (nonzero) digits is 302400, while the sum is 43.

The spelling of 1351662402157 in words is "one trillion, three hundred fifty-one billion, six hundred sixty-two million, four hundred two thousand, one hundred fifty-seven".