1401147603761 has 4 divisors (see below), whose sum is σ = 1401348434532. Its totient is φ = 1400946772992.

The previous prime is 1401147603733. The next prime is 1401147603787. The reversal of 1401147603761 is 1673067411041.

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 735709330225 + 665438273536 = 857735^2 + 815744^2 .

It is a cyclic number.

It is not a de Polignac number, because 1401147603761 - 2¹⁴ = 1401147587377 is a prime.

It is a super-2 number, since 2×1401147603761² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1401147603701) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 100404920 + ... + 100418873.

It is an arithmetic number, because the mean of its divisors is an integer number (350337108633).

Almost surely, 2^{1401147603761} is an apocalyptic number.

It is an amenable number.

1401147603761 is a deficient number, since it is larger than the sum of its proper divisors (200830771).

1401147603761 is an equidigital number, since it uses as much as digits as its factorization.

1401147603761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200830770.

The product of its (nonzero) digits is 84672, while the sum is 41.

The spelling of 1401147603761 in words is "one trillion, four hundred one billion, one hundred forty-seven million, six hundred three thousand, seven hundred sixty-one".