1010542251 has 8 divisors (see below), whose sum is σ = 1348745104. Its totient is φ = 673017120.

The previous prime is 1010542249. The next prime is 1010542289. The reversal of 1010542251 is 1522450101.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1010542251 - 2¹ = 1010542249 is a prime.

It is a super-3 number, since 3×1010542251³ (a number of 28 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1010542231) 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, 165940 + ... + 171921.

It is an arithmetic number, because the mean of its divisors is an integer number (168593138).

Almost surely, 2^1010542251 is an apocalyptic number.

1010542251 is a deficient number, since it is larger than the sum of its proper divisors (338202853).

1010542251 is an equidigital number, since it uses as much as digits as its factorization.

1010542251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 338861.

The product of its (nonzero) digits is 400, while the sum is 21.

The square root of 1010542251 is about 31789.0272106587. The cubic root of 1010542251 is about 1003.5018067027.

Adding to 1010542251 its reverse (1522450101), we get a palindrome (2532992352).

The spelling of 1010542251 in words is "one billion, ten million, five hundred forty-two thousand, two hundred fifty-one".