1400146157 has 4 divisors (see below), whose sum is σ = 1473838080. Its totient is φ = 1326454236.

The previous prime is 1400146147. The next prime is 1400146159. The reversal of 1400146157 is 7516410041.

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.

It is a cyclic number.

It is not a de Polignac number, because 1400146157 - 2¹² = 1400142061 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1400146159) 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, 36845933 + ... + 36845970.

It is an arithmetic number, because the mean of its divisors is an integer number (368459520).

Almost surely, 2^1400146157 is an apocalyptic number.

It is an amenable number.

1400146157 is a deficient number, since it is larger than the sum of its proper divisors (73691923).

1400146157 is an equidigital number, since it uses as much as digits as its factorization.

1400146157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73691922.

The product of its (nonzero) digits is 3360, while the sum is 29.

The square root of 1400146157 is about 37418.5269218338. The cubic root of 1400146157 is about 1118.7278703029.

Adding to 1400146157 its reverse (7516410041), we get a palindrome (8916556198).

The spelling of 1400146157 in words is "one billion, four hundred million, one hundred forty-six thousand, one hundred fifty-seven".