401497141 has 4 divisors (see below), whose sum is σ = 415341900. Its totient is φ = 387652384.

The previous prime is 401497111. The next prime is 401497169. The reversal of 401497141 is 141794104.

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 106688241 + 294808900 = 10329^2 + 17170^2 .

It is a cyclic number.

It is not a de Polignac number, because 401497141 - 2⁷ = 401497013 is a prime.

It is a super-2 number, since 2×401497141² = 322399908462347762, which contains 22 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 (401497111) 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, 6922336 + ... + 6922393.

It is an arithmetic number, because the mean of its divisors is an integer number (103835475).

Almost surely, 2^401497141 is an apocalyptic number.

It is an amenable number.

401497141 is a deficient number, since it is larger than the sum of its proper divisors (13844759).

401497141 is a wasteful number, since it uses less digits than its factorization.

401497141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13844758.

The product of its (nonzero) digits is 4032, while the sum is 31.

The square root of 401497141 is about 20037.3935680268. The cubic root of 401497141 is about 737.7244076651.

The spelling of 401497141 in words is "four hundred one million, four hundred ninety-seven thousand, one hundred forty-one".