1053621146 has 4 divisors (see below), whose sum is σ = 1580431722. Its totient is φ = 526810572.

The previous prime is 1053621143. The next prime is 1053621187. The reversal of 1053621146 is 6411263501.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6411263501 = 23 ⋅278750587.

It can be written as a sum of positive squares in only one way, i.e., 765130921 + 288490225 = 27661^2 + 16985^2 .

It is a super-2 number, since 2×1053621146² = 2220235038596706632, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1053621143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 263405285 + ... + 263405288.

Almost surely, 2^1053621146 is an apocalyptic number.

1053621146 is a deficient number, since it is larger than the sum of its proper divisors (526810576).

1053621146 is an equidigital number, since it uses as much as digits as its factorization.

1053621146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 526810575.

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 1053621146 is about 32459.5308961790. The cubic root of 1053621146 is about 1017.5634351241.

Adding to 1053621146 its reverse (6411263501), we get a palindrome (7464884647).

The spelling of 1053621146 in words is "one billion, fifty-three million, six hundred twenty-one thousand, one hundred forty-six".