1400402101 has 4 divisors (see below), whose sum is σ = 1600459552. Its totient is φ = 1200344652.

The previous prime is 1400402099. The next prime is 1400402117. The reversal of 1400402101 is 1012040041.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1012040041 = 523 ⋅1935067.

It is a cyclic number.

It is not a de Polignac number, because 1400402101 - 2¹ = 1400402099 is a prime.

It is a super-2 number, since 2×1400402101² = 3922252088970428402, 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 (1400402501) 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, 100028715 + ... + 100028728.

It is an arithmetic number, because the mean of its divisors is an integer number (400114888).

Almost surely, 2^1400402101 is an apocalyptic number.

It is an amenable number.

1400402101 is a deficient number, since it is larger than the sum of its proper divisors (200057451).

1400402101 is an equidigital number, since it uses as much as digits as its factorization.

1400402101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200057450.

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 1400402101 is about 37421.9467826034. The cubic root of 1400402101 is about 1118.7960332442.

Adding to 1400402101 its reverse (1012040041), we get a palindrome (2412442142).

The spelling of 1400402101 in words is "one billion, four hundred million, four hundred two thousand, one hundred one".