1055121530 has 16 divisors (see below), whose sum is σ = 1943387424. Its totient is φ = 412233360.

The previous prime is 1055121491. The next prime is 1055121533. The reversal of 1055121530 is 351215501.

It is a happy number.

It is a super-2 number, since 2×1055121530² = 2226562886139081800, which contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1055121496 and 1055121505.

It is not an unprimeable number, because it can be changed into a prime (1055121533) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1226456 + ... + 1227315.

It is an arithmetic number, because the mean of its divisors is an integer number (121461714).

Almost surely, 2^1055121530 is an apocalyptic number.

1055121530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1055121530 is a deficient number, since it is larger than the sum of its proper divisors (888265894).

1055121530 is a wasteful number, since it uses less digits than its factorization.

1055121530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2453821.

The product of its (nonzero) digits is 750, while the sum is 23.

The square root of 1055121530 is about 32482.6342835676. The cubic root of 1055121530 is about 1018.0462183243.

The spelling of 1055121530 in words is "one billion, fifty-five million, one hundred twenty-one thousand, five hundred thirty".